Prediction of Gravel Bedload with SAM

by David R. Dawdy, (A.M.ASCE), Multech Engineering Consultants, San Jose, United States,
Wen C. Wang, (M.ASCE), Multech Engineering Consultants, San Jose, United States,

Document Type: Proceeding Paper

Part of: Water Policy and Management: Solving the Problems

Abstract: Bedload measurements for Little Beaver Creek in Colorado were used to test the sediment transport functions included in SAM. The test results showed that Toffaleti predicts total bedload movement fairly accurately. However, none of the methods predicts transported size distribution accurately. Several seem to have a critical shear which precludes large bedload movement except at discharges outside the range of the present test data.

Subject Headings: Bed loads | Gravels | Sediment transport | Streamflow | Critical flow | Solids flow | Shear flow | North America | Colorado | United States

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